Answer: Safety precautions must be taken while handling the equipments used for experiments.
Step-by-step explanation:
One must clean the slide with soap and water to remove the contaminants.
A slide must be autoclaved or must be kept in oven before using it for experiment so as to kill microbes sensitive to heat which can include error in the experiment.
One must hold a slide with a forceps or pair of tongs during experiment or while heating as it will protect one from chemicals and heat burns.
One must wear gloves while holding a slide to prevent the contaminants from hands to be included in the slide.